Fastening peg



FIG. 1 is a front perspective view of a fastening peg showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear is a mirror image;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a side elevational view thereof, the opposite side is a mirror image. 

The ornamental design for a fastening peg, as shown and described. 